<template>
    <view class="cart-container" v-if="cart.length !== 0">
      <!-- 收货地址组件 -->
      <my-address></my-address>
      <!-- 商品列表的标题区域 -->
      <view class="cart-title">
        <!-- 左侧的图标 -->
        <uni-icons type="shop" size="18"></uni-icons>
        <!-- 右侧的文本 -->
        <text class="cart-title-text">购物车</text>
      </view>
      
      <!-- 商品列表区域 -->
      <uni-swipe-action>
            <block v-for="(goods, i) in cart" :key="i">
        <uni-swipe-action-item :right-options="options" @click="swiperItemClickHandler(goods)">
          <my-goods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioChangeHandler" @num-change="numChangeHandler"></my-goods>
        </uni-swipe-action-item>
            </block>
      </uni-swipe-action>
      <!-- 自定义的结算组件 -->
      <my-settle></my-settle>
    </view>
    <!-- 空白购物车的区域 -->
    <view class="empty-cart" v-else>
      <image src="@/static/cart_empty@2x.png" class="empty-img"></image>
      <text class="empty-tip">空空如也~</text>
    </view>
</template>

<script>
  import tabBarMix from '@/mixins/tabbar-badge.js'
  import {mapState, mapMutations} from 'vuex'
  export default {
    mixins: [tabBarMix],
    computed: {
      ...mapState('m_cart',['cart'])
    },
    data() {
      return {
        options: [{
          text: '删除',
          style: {
            backgroundColor: '#C00000'
          }
        }]
      };
    },
    methods: {
      ...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
      radioChangeHandler(e) {
        // console.log(e);
        this.updateGoodsState(e)
      },
      numChangeHandler(e) {
        this.updateGoodsCount(e)
      },
      swiperItemClickHandler(goods) {
        this.removeGoodsById(goods.goods_id)
      }
    } 
  }
</script>

<style lang="scss">
  .cart-container {
    padding-bottom: 50px;
  }
.cart-title {
  display: flex;
  height: 40px;
  align-items: center;
  padding-left: 5px;
  border-bottom: 1px solid #EFEFEF;
  .cart-title-text{
    font-size: 14px;
    margin-left: 10px
  }
}
.empty-cart {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;
  .empty-img {
    width: 90px;
    height: 90px;
  }
  .empty-tip {
    font-size: 12px;
    color: gray;
    margin-top: 15px;
  }
}
</style>
